That's just the opinion of the writer. He sounds bitter about his experience there, so an article like this is not surprising. Is it the truth? You wouldn't know unless you were inside Parker's head.

Does the Mormon Church have a very tattered and controversial history with African-Americans? Yes. That's not a matter of opinion. Does a black person stick out like a sore thumb in Provo, UT? Yes. That's not a matter of opinion.